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(viper)Improvements over Vi

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Improvements over Vi
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   Some common problems with Vi and Ex have been solved in Viper.  This
includes better implementation of existing commands, new commands, and
the facilities provided by Emacs.

Basics

Basic Viper differences, Multi-file effects.

Undo and Backups

Multiple undo, auto-save, backups and changes

History

History for Ex and Vi commands.

Macros and Registers

Keyboard Macros (extended ".") @reg execution.

Completion

Filename and Command Completion for Ex.

Improved Search

Incremental Search and Buffer Content Search.

Abbreviation Facilities

Normal Abbrevs, Templates, and Dynamic Abbrevs.

Movement and Markers

Screen Editor movements, viewing textmarkers.

New Commands

Commands that do not exist in Vi.

Useful Packages

A Sampling of some Emacs packages, and things

you should know about.